I'm almost to the point where I hate this woman with a passion. She's one of those people that the less you know about her, the more you like her. It's great that she's going vegan, but she needs to step off her soapbox PRONTO. I remember an episode with that doctor she always has on her show where he was talking about the negative affects that meat has on the body, and how it literally rots in your stomach. Her response was to tell people that it's perfectly fine, and to keep eating meat because there's nothing wrong with it. She's a fucking asshat. I'm tired of her trying to sway the beliefs of her stupid minions.

I think buying humanely raised meat/dairy/eggs is a better option for most people than a radical diet change

Oprah notwithstanding, what is the basis for this opinion? Unfortunately, the stuff we buy that says "humanely raised" or "free range" or "cage free" adheres to no standards at all. "All natural" is another toothless label. There's no regulations on this kind of thing, at least in the U.S., and the animals are not in fact treated well. Eat what you want, but don't be fooled into thinking you're eating humanely raised food when you're not.